nmap compiles but dies with a bus error each time it is run with any arguments. Tried some different CFLAGS but didn't seem to help. This applies to nmap-3.0 which is marked sparc and nmap-3.10_alpha4 which is marked ~sparc. This was noticed on an Ultra 1.
Problem seemed to be related to sbus based sparcs (sparcstation 10 and Ultra 1 systems both exhibited this problem). Upgrading to nmap-3.10alpha6 fixed this problem. New ebuild has been committed to fix this problem.
Problem fixed, closing.